Solve the Problem $\begin{array} { l l l } 57 & 64 & 59 \end{array}$

Multiple Choice

Solve the problem.
-Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mean retirement age. Round your answer to the nearest tenth. $\begin{array} { l l l } 57 & 64 & 59 \end{array}$
$53 \quad 66 \quad 58$
675154

A) $57.5$
B) $58.0$
C) $58.8$
D) $58.1$